No video :(

JK-BMS go home! Here comes the new BMS King. Wait.... is this a JBD BMS??? 😱

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Yes, it is true: this JBD BMS from Muller Energy is indeed a tick better than the good old JK-BMS. At least when we compare the 4s version because this JBD BMS is only available for 12V batteries. For now...
The Muller Energy JBD BMS is massive, has 250A continues current, a 5A active balancer, a displ... wait, did I say 5A active balancer?! Seriously?
Lets put this BMS to the test and see how good the balancer function works. It's hard to top the JK after all...
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Опубликовано:

19 ноя 2022

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Комментарии : 595

@mullerenergy Год назад

Great video, thanks very much Andy! 🐸🐸🐸🐸 It has taken a lot of effort to get the BMS to where it is, so I'm very happy that it was well received. To be honest, it was actually developed for our next batch of batteries. But then we thought that there might be an interest by the DIY community, so we made it available to the public. We needed a 250A (to be able to run a 3000VA inverter) Smart BMS and there aren't that many on the market and those out there didn't quite have the features that we were after which is why we created our own. Some people have mentioned that it's not cheap and of course, I'm not going to argue with that, but I actually think it's quite reasonably priced when you compare it to the locally availble alternatives that are also priced in AUD and come with GST and an Australian warranty. Locally a 250A Daly BMS is around $300 and that's without a screen and only a ~40mA passive balancer. Also Andy, yes, you're correct, it is a heating connector. Not something commonly used in Australia, but given the very small difference in cost, we chose to include it as it might appeal to some people in Australia and people that live in colder climates. As for international shipping, we will offer it, but I'm just trying to work out the cheapest and quickest way to facilliate this, please give us a couple of days and we'll have it available (I'll also get back to those of you that enquired via email/message). Finally, on the 16s version, it's definitely a posibility, I could even envisage a 8s-20s LiFePO4/NMC version. We'll give it a few days to gauge any potential interest in this and then decide whether it's financially viable. This version would obvioulsy also have a CAN BUS connector available. Thanks for all the comments, even the slightly critical ones, it's always good to get feedback!

@mikeoreilly5065 Год назад

Fantastic product and development effort. Is there any thought to including a CAN BUS Sunny SMA output on the 4S so the unit can communicate with Victron and Wakespeed? The RS485 method would be too slow to permit shutdown of an alternator prior to the BMS shutting off charging and risking alternator damage. Thanks

@benji888578 Год назад

I may be interested in 2 8s for my BYD 24v LFP batteries as they charge to about 3.38v 1-3 cells take a jump to anything from 3.55-3.91v, I’m going to have to limit the charge for the moment until I have a solution. They rest evenly around 3.3x, so odd, these batteries act like adolescent children above 3.38v! Edit, I’m in the USA.

@silviuflorescu6838 Год назад

Considering that is a kit and comes with your warranty, it is a fair price, even if it costs double as the Jbd sells. Adding the heating port to be used in cold climates was also a smart ideea. If you could ask Jbd to make one model of 300 Ah (or higher) for 8S and 16S, that would be amazing. You would smash the diy electric boats market with that if you can mantain a decent price (under the Orion Jr 2). I would buy both models, since I need the 8S for the camper box (8kw inverter on 8x304Ah Eve cells) and the 16S for my future electric boat with a 18kw motor. Hope you will find a way to ship them internationally (I am from Romania, Eu). If not, I will still buy them trough my brother who lives in Melbourne.

@CollinBaillie Год назад

For the heater terminal... Don't sell yourself short. Can you imagine Australian based companies who want to deploy lithium battery based storage in Sub-Zero conditions? Probably a bit of opportunity for Antarctic stations, ships, other sites which experience Sub-Zero weather with administration in Australia.

@evil17 Год назад

I have a 24v (in bus) & a 48v (home) system, a 250A version would be nice, but I can see a high want/need for 200A & 300A versions in the 24v & 48v systems too. I see a higher trend towards the 24v & 48v gear now with the DIY solar on/off grid and in the caravan & 4WD communities also. It was a good move to include provisions for heating as many caravaners are likely to encounter very cold climates at some time. My BMS’s all have heating functionality (just in case) but I have not felt a need to hook this up as I am in a fairly tropic climate. Looks nice, definitely bring on the 24v & 48v gear.

@awesomedee5421 Год назад

I can see wifes all over the world excited to get a Muller BMS just as much as getting a toothbrush for christmas.

@mullerenergy Год назад

Well, if I now sell a BMS for each toothbrush that husband's would have given to their wife's for Christmas, I might sell an additional 2 or 3 units! 😁

@anthonyrstrawbridge Год назад

Curling iron and blow dryer 👍

@gubbernl Год назад

@@mullerenergy so, the big question..., when will the 16S be launched...?

@kooscombrinck3753 Год назад

Electric tooth brush with fibrator function??? 🤣😆😁😄😃😀

@HermanWillems Год назад

@@mullerenergy 16s version please :) whooo

@ktraglin Год назад

This looks really cool. I'd like to see them offer a 14s version (for lithium ion, etc).

@yuriykot10 Год назад

Good afternoon! I am all the same a supporter of JK-BMS 4S-8S. After all, it is for 3 types of batteries, for all voltages up to 8s and a large balancing current. She does not need anything additional to hang for balancing. In this new BMS, it should be noted good threads for screws and a diameter of M8, as well as a beautiful radiator.

@gumpster6 Год назад

You got me on the cable length bit... hilarious! Good review, seems like a great BMS.

@OffGridGarageAustralia Год назад

It's so looooooong😁

@lnxpro Год назад

A 16s version would be fantastic. Andy, make it happen! You can do it!. lol.

@Moramora. Год назад

Tu es un super testeur. Merci beaucoup, j'attends le même model en 8S avec prise RJ pour interconnecter plusieurs BMS et une prise CAN pour utiliser sur Victron GX !!! Let's go Muller energy, vos prix sont en plus bien positionnés !!!

@MarkPrince1317 Год назад

Thank you very much Andy for always the best and easy to understanding videos Best regards from Philippines 🇵🇭 ☕☕

@OffGridGarageAustralia Год назад

Thanks a lot.

@hertmond Год назад

A great system and once again superbly staged, greetings from Germany.

@OffGridGarageAustralia Год назад

Thank you very much!

@robertobarca7062 Год назад

Hi Andy, I've been following you on the web for some time, you're a nice person and I really like how you experiment with the different components. I have been approaching the off-grid world for just over a year and I am about to install my system. browsing the various sites I discovered the existence of a particular BMS that I would like to submit to you because I consider it extremely versatile and with which you can personally build and customize the intervention logics of the protection thresholds. You may already know it, it's the ELERIX CPM BMS. Greetings, you are great. Robert

@twistedthrottle8513 Год назад

new subscriber in QLD ,love your work mate, learnt a lot already after viewing your videos for last week ,

@danfitzpatrick4112 Год назад

JBD looks like a beast. I love the build quality! 16s please!

@AWarrior-bms 11 месяцев назад

We are the JBD manufactueres.

@zeropointbalance7366 Год назад

Andy, cool video. Looks like we are almost there. This balancer is similar to what I tried. The problem is, as you point out, that it only turns on when all cells are high. I am looking for a balancer that works for a reasonably worst case. i.e. if you have a system where one or more of your cells is consistently low. For a test I top balance the battery, then remove 2AH off one cell and see if the balancer can fix the problem.... And, unfortunately, the low cell will prevent the balancer from turning on. So not quite yet. Note 1: A normal Heltec can easily fix that that imbalance (couple of hours @ 13.8V, but always on, so no go for me). Note 2: I actually found a balancer, that could do the trick, but it is passive and bit tricky to use and generates heat so people hate it and it makes it not useable for my application. And, apparently no one wants to sell it - difficult to search for (spec below). Good luck. You will find everything except that balancer. To use: attach balancer to battery (in addition to BMS) and apply 3.45V*4 = 13.8V charger (

@gordonfoat8269 Год назад

Perfect Andy.. 8 and 16 cells options beautiful

@OffGridGarageAustralia Год назад

Yep, hopefully coming soon...

@peterwhitten1353 Год назад

I'd be intereste in a 16s version. Good video Andy

@wfdTamar 6 месяцев назад

Just successfully tested all this running at the same time off my 626Ah 2P4S battery and had 255 Amps running through the BMS. Only for a few minutes as I didn't want to push it so early on: 110 litre compressor fridge (about 5 Amps) water pump (a few Amps?) 1550 watt air fryer (actually used more like 1700 watts) 750 watt microwave (uses 1200 watts) Both those through Fchao 3000W inverter.

@centerrightproudamerican5727 Год назад

A couple points. 1) When the BMS switch is turned on, is there any current limiter that reduces the surge current while the inverter capacitors charge up? If not, how hard is the surge on the internals of the BMS and the capacitors of the inverter? (Some folks claim the surge can damage the caps and the fets). 2) When building a battery, mounting and inclosing the BMS is a PITA. Having a dangling Bluetooth connector makes it worse..... adding an active balancer makes it even more of a pain.... and then there is all the extra wiring. This would be a much more attractive BMS for me if the BT and Active balancer were integrated.

@mullerenergy Год назад

Thanks for the questions. 1) No, there's no current limiting, once discharge is enabled. If this inrush current damages your inverter, it's the inverter that has a design flaw, in my opinion. But I have not heard of this happening at all, neither with a BMS (we sell BMS versions with this functionality) or with any of our batteriers. As for the MOSFETs, I'm assuming you're talking about the ones on the BMS? The BMS is built to withstand a short circuit. If it can do that, it can handle the inrush current of an inverter as well. 2) I'll take this one onboard for future BMS developments, thanks! The advantage is that this solution is more modular, making it easier to change things in the future. Plus, some people like to extend the Bluetooth cabling and run it outside the battery box, if reception is an issue.

@FutureSystem738 Год назад

@@mullerenergy Agree 100% re the BT. I would definitely extend it to have the BT module in a better position. BT range is very limited when in a metal battery box such as in my caravan.

@janneumann2208 Год назад

I learned a lot from you, dear Andy. Many thanks fo that. One point was, that JBDs have this major downside not showing (and measuring?) currents below 300mA. That's still the case with the newest model i bought, and i never got an answer from JBD on my question, if and when they would like to fix this issue. I can live with it since i have a smart shunt, and the JDB had an acceptable price. And i have an active balancer in my 12V Winston build in my RV that i can switch off, when not needed. Normally the 150mA passive balancing in the BMS is sufficient for a max deviation of under 10 mV. The 200A JBD (express shipped from china with paid tax) plus the balancer and two switches (one for the BMS) have cost me around 150€. I can't see an advantage of this Müller-customized JBD, that could be worth the double price. People just have to learn, that it doesn't make sense to power a 3000W (or more) inverter with 12V batteries ;-). But obviously is learning harder than paying in our strange world 😞.

@Arishomestead Год назад

Thanks Andy for this review. Really great BMS. What I would consider great bms is with heating option and actual heating pads. So far we have JK and Daly that officialy offer heating function, buy without heating element itself. So customer needs to buy something and solder heating element elswhere. I know that heating option is not needed for you, but wher I live we have already -10 celsius and winter has not even started. So I would be really glad if you would test heating for this JBD when it will have 250A 16s with heater. Till then I will try to add heating element to JK and Daly. This is a must have feature for lot of people all arround the world I think. Thanks Andy. Have a goof day.

@OffGridGarageAustralia Год назад

Thank you, I'll see what I can dig out and get done in this perspective. I have the SunFunKits case with heating pads but only tried it once to heat the cells for testing.

@juergwyser6520 Год назад

The king is dead, long live the king! I use the active balancer since more than a year in a similar way together wit a JK BMS: my CerboGX switches the relay once the SOC is 99% and this connects the un-soldered on pads on the active balancer. So every time my battery hits the fully charging it is perfectly balanced! Of course, the copper bars etc are impressive, but throwing away what works is not affordable for everybody! But as usual, great video, great presentation of details, go on with your excellent channel!

@OffGridGarageAustralia Год назад

Yep, the GX devices and also larger MPPTs from Victron have a relay which can be used for that purpose. That is a great solution. There is no need for upgrading any BMS with the JBD. I was just showing what they have developed.

@B4x4 Год назад

What we really need, is the manual cable doing a charging off on an other wire. Wee need more controll to stop the freeze. We need more controll when the cell's are hot enough. Cheers from freezing cold Norway 🇧🇻

@gertvanwerven6355 Год назад

Andy, I really like you're unbiased video's and I'm always looking forward to the next. With this video I had a slightly different feeling especially the unbiased part of it. Whether or not one is better than the other I will leave out of the discussion here. To make a good comparison we would need a price comparison and that was lacking here for example. Also the 5% discount seems to suggest ... although I could be completely wrong. Keep up the good work just this one could have been a bit better.

@ToThePointGarfield Год назад

Same feeling here.

@ianpope7061 Год назад

Totally agree. I tend to filter out the evaluative comments and just focus on the facts/evidence. Then you can make your own determination of which is better. But I guess some other people want/looking for a recommendation......

@laurentiu1689 Год назад

Saying the JK has a smaller radiator it’s irelevant as it has enough mosfets that they don’t produce enough heat, also JK can deliver the stated power, etc this literally was the first time where i feel like the comments are not based on actual facts. (The only downside on JK is that it only balances one cell at time).

@ToThePointGarfield Год назад

@@laurentiu1689 when the effectiveness of a system is good enough it will produce less heat. That huge cooling sink needs cooling and thus more space. I find the overall size and extra's a bit overkill. What's next ? A bms that's larger than a 4s battery?

@OffGridGarageAustralia Год назад

I have no financial gain if someone buys this BMS or not. I was asking them if they want to do a Christmas special with 5% off. I'm not getting any affiliate payment nor other perks, nothing. I've got no interest in supporting this company nor do I know them. The price is what they charge, not me. I'm not recommending buying this BMS or any other. It's a technical review to show what can be done if working together with the Chinese manufacturer and adding additional function like we always wanted.

@bogdangiurgiu3952 Год назад

You are so luky Andy to have the posibility to do all you are doing. I am from Romania and (for now) I can only dream of doing what you are doing now. I have an 40Ah Epever charge controller, a few cheap solar panels, an cheap 24V chinese inverter and only an 24V baterry sistem that is made out of lead acid baterryes... I can only dream to have the posibility to buy lifepo4 baterryes for my cheap off grid sistem. Well done Andy! Thank you for all you are doing!

@OffGridGarageAustralia Год назад

Thanks a lot Bogdan. I appreciate your comment and I am indeed lucky to have all these possibilities and can test so many devices. I'm also very lucky to share all this with a great audience and people like you!

@waynescheepers145 Год назад

Hi Andy, great review, can't wait for the 16s varient. One of my packs has a total cell capacity variation of 8ah ( 105 ah average) I've soldered 2 of the heltect active balancers together (to avoid a messy cabling situation) I'd recommend stacking the active balancers together on this 4s system for fast effective results.

@ToThePointGarfield Год назад

I've got 2x 4s running with JK 2A balancing bms. It has work the first time the batterys top off. After that it doesn't need a lot of balancing the next top off if any. So 2x a balancer is a bit overkill and waist of resources for me.

@netrocker9990 Год назад

@@ToThePointGarfield yes. Correct

@OffGridGarageAustralia Год назад

The 2A balancer is great so you can reduce the absorption time and get the battery to a lower voltage quickly. The JK also comes with 1A active balancer for whatever reason...

@Alina_WANG_Sales_Manager Год назад

@@OffGridGarageAustralia Hello,sir, happy Easter festival. I have JK bms and price is unbeatable. I send from China and u can receive in one week.

@zeropointbalance7366 Год назад

Andy, great video. A couple of comments: First, I found if you lower the charge voltage to 13.8V or so, you will decrease the number of HV disconnects required to achieve balance - it will achieve balance with a slightly lower average peak voltage on the over voltage cell. I know that you like to use that per cell voltage level on you main banks anyhow. Second, I have been looking now for a while for a balancer like that HELTEC (or whatever the brand your's is) that simply turns on when the **first** cell hits 3.45V or so (automatically, low cost, simple). No go. I was sure I could find one. I modified one of my heltecs to a 3.4V threshold (from the 2.7V threshold) by changing out the voltage detector to see if I could create one. Now it turns on when all cells are above 3.4V - which does not work properly since a low cell will prevent activation. It needs slightly more than a simple parts change. It requires a circuit re-design so it turns on when the fist cell crosses the threshold. Not difficult, just needs a re-design. Maybe you can convince Muller to produce such a modified device - it looks like they managed to add a connector? That way all you would need to do is connect the new balancers to your other banks instead of replacing the whole BMS. I think the problem is that almost all lower cost balancers available are re-tasked from other chemistries - without re-design. A simple circuit change on Heltec would provide a universal LIFEPO4 balancer that would allow everyone with a weak balancer (like the Daly's you demoed) to solve the LIFEPO4 balance problem once and for all without throwing out the BMS with the weak balancer.

@SuperBrainAK Год назад

yea that would be neat. Also the connector is literally soldered and glued onto the original unmodified PCB from Heltec. You could do the same thing to any existing balancers with a run switch.

@OffGridGarageAustralia Год назад

I have actually such a balancer incoming which you mentioned in your second paragraph. We will test it soon on the channel. I'm sure Heltec would be able to change these circuits accordingly to make the perfect balancer for us. But just for us... there might be other cases where this is not desired, and the balancer should just work as it is right now (using Li-ion cells for example). I'm sure the one I will receive soon will just work even all the cells need to be over 3.4V to start it. It just requires one first top balance of the cells to get started.

@SuperBrainAK Год назад

@@OffGridGarageAustralia That would be useful, one set that starts when *one* cell gets to 3.4v and a different type that starts when one cell gets to 3.8v for Li-ion.

@paultest3917 Год назад

Great show Andy🙂 @Muller Energy 8-16s Version would be nice and I‘ll would by. 👍🏻

@thedolphin5428 Год назад

Re the LCD screen with this unit, some months back, I had conversations with Ruben Muller about my frustrations that his 4S Daly BMS needed a bloody phone app just to see the SOC, and about how dodgy the Daly software and interfaces were. I wanted to just glance at my boat dashboard to see A, V, and SOC. That's why the cable is so long -- to reach to a skipper's helm or into the front cab or lounge room of an RV van for a quick check. Having the fully programmable BT App plus the LCD for instant, always-on monitoring is an excellent function. Well done Muller.

@sfkenergy Год назад

Andy, We have sold over 1100 of the little 4s balancers, no returns over 1 year (except in situations where they were wired incorrectly). In regards to your concern about them always balance, the balancers stop working after 2.9v there is no more balancing function. On grade A/EV grade cells this is a non issue, as the balancer never even turn on because the voltage delta in these devices is 0.1v before they are triggered on. We use them to assist in top balancing the pack when it is being fully charged. Muller has created a beast BMS, we will need to contact them and see about making a plate that can fit our v4 Kit!

@OffGridGarageAustralia Год назад

Thanks, the balancer cause imbalance when going into the flat area of the curve with LiFePO4 cells. I have a few videos here on the channel showing that. It should not be turn on below 3.4V therefor. 2.9V is certainly far too low and only the low voltage disconnect for the balancer but the 'damage' is then already done. Yeah, you will need a new plate for your batteries for that BMS. It's huge but 250A💪

@gordonwaldmann944 Месяц назад

E started following your channel. A word of warning to others. I have used the active capacitor balancers for several years now and have had capacitor failures. I had 10A rated unit.

@NoelBarlau 3 месяца назад

I just noticed in Australia they're called "Crocodile clamps" whereas in the U.S. we call them "Alligator clips". Interesting. Also, great presentation on this BMS. It's much appreciated.

@SylwerDragon Год назад

Nice one Andy. As you said too bad they have it only for 4S config. But i'm a bit sceptical for 16S version.. if costs is too much it is no sense version. For that we have to wait and compare both BMS. So far it looks ok for both.

@OffGridGarageAustralia Год назад

The JBD seems a lot beefier then the JK, so I would actually prefer the JBD in this case. I don't trust the JK to come close to 200A.

@evil17 Год назад

For DIY gear, it would be nice to see some more output control interfaces on BMS’s & controllers so you could have maybe 4-6 relay activating/switching outputs for various loads such as generator startup, battery heating, external active balancer, hot water switching at 95%+ SOC, pool pump, aircon, etc, that can all be set within an app to activate when parameters are reached to switch more solar dumping type loads in succession as batteries are near full & take full advantage of any potential excesses of energy you may be able to on a good day.

@OffGridGarageAustralia Год назад

Yes, that would be great. It could be just a relay module connect to the RS485 port for example and a few additional options in the software to program them.

@sreekumarUSA Год назад

@@OffGridGarageAustralia 112522/1853 PST 🇺🇸 The same functions are inbuilt in Victron CERBO-GX system. All the above is possible to embed in JBD Müller also (and more) but the question is why not try Victron CERBO-GX, when every thing one desires is already at your service? Cost= convenience, viewing PV systems universally. Congratulations to Müller Australia 🇦🇺 for incorporating AB and Touch Screen to JBD Müller. Danke Scheon, Andy and Müller 🇦🇺. 73s...

@ambersmith6517 Год назад

tons of old laptops out there

@ambersmith6517 Год назад

i have 50 to 100 i5 4 and 8 gig ram ones just setting getting dusty

@WolfWalter Год назад

Hello Andy and hello @mullerenergy, thanks for the impressive presentation. We currently work exclusively with JK and 16S. With 4S, many BMS work very well with or without a balancer. If a 16S from Mullerenergy can achieve similarly good results with an included balancer and costs around €300-400, we would order regularly (around 50 pieces or more a year). We are installing solar systems in Portugal in the Algarve and have a constant need for balanced 16S LiFePo4 systems.

@r.b.l.5841 Год назад

I just got into JK BMS and love them, replacing my Daly's !! one by one. But you know, with the JK and a good set of closely matched cells, the passive balance works perfectly for my ESS solar set up, since gentle charge and discharge cycles.

@5885ronny Год назад

Super Video das ist das was die Leute sehen wollen 👍🤗👍🤗

@michmull2841 Год назад

Hey Andy, good morning in the morning. Soccer is now going to start for Australia against France. Good luck

@cnc_mill Год назад

Ein echt gelungenes video von Down Over Austria to DownUnder ;). Bleibt abzuwarten on JBD so etwas implementieren wird aber so wie es aussieht ist dies nur eine einzige Ausgabe für einen einzigen Anwendungsbereich KFZ und Camper

@Darryl_P_ Год назад

Im definitely interested in a 16S version

@CoryRobson Год назад

waiting now for the 16s model with CAN and then an all in one unit with everything on board

@janneumann2208 Год назад

JBD already launched models with at least bluetooth onboard... ...works fine ;-)

@melbournesubtropicfruits9474 Год назад

Great Vid on BMS

@Ihaveausernametoo 3 месяца назад

Excellent review I thank you. Great BMS too. But, it costs more than 100AH battery itself in my case. It better last.

@AWarrior-bms 11 месяцев назад

Thanks a lot for your sharing, Andy! We are the new brand of JBD for overseas market. Thanks a lot for your approval !

@keyem4504 Год назад

Very interesting video, Andy. However, your beloved QUCC BMS has this external off switch as well. I remember that you once wondered what this port was for...

@OffGridGarageAustralia Год назад

Yes, it does. I know this now as well. Haven't used this for a while. Not a fan of this relay function which works inconsistently...

@davidrogers5343 Год назад

informative video, now go to work for Retirement, thanks for putting all banks on one BMS you will love it.

@davecrook9313 Год назад

A 8s-16s version would be very nice.

@jbjensen11 Год назад

A BMS for my girlfriend for Christmas?? Not a bad suggestion Andy. Not bad at all... -Except I already got her a nice Hydraulic Crimper! -She will be so thrilled, I can't wait to see her face when so opens up such wonderful present.

@OffGridGarageAustralia Год назад

Hahaha, she will love the crimper. Makes such a great present 😄

@jbjensen11 Год назад

@@OffGridGarageAustralia I especially got it in yellow - such a wonderful contrast to the red bow around... NOW she will know how much I love her. I'm sure my mother in-law gets excited too! -Thanks Andy for guiding me to better my relationships. This Channel just doesn't stop giving! 😁

@markbrettnell3503 Год назад

Andy, you're jumping the gun to say this JBD is the new king. It's more like a Prince at this time. They need to do a few this to become king. First, they need to make a unit that is 8s-16s capable. Second, their price rage needs to be in line with JK. Don't get me wrong. I'd be interested in an 8s unit myself. It is a well set up unit and the developer was definitely thinking things through. 🤔mind you the price would probably be around $300+ Canadian considering the JK 200amp unit is about $200 on aliexpress. Still a beefy unit though with properly done features. Good on them for doing so!👍👏

@OffGridGarageAustralia Год назад

Hence i have this little * in the thumbnail, saying it's for the 4s version only 😉 It's a good start, so hopefully we will see more of such developments from JBD and others in the future.

@netrocker9990 Год назад

I still like the jkbms. If we have properly done the top balance initially,then no need of balancing of more than one cell at a time and also more balancing current is not needed.

@jws3925 Год назад

This has been my experience with my small system as well. My cells appear a bit out of balance but after about an hour after charging everything settles down and they are usually less than 10 mA difference. System only a year old at this point.

@netrocker9990 Год назад

@@jws3925 10ma?

@evil17 Год назад

@@netrocker9990I would guess he meant 10 mv

@netrocker9990 Год назад

@@evil17 yup

@OffGridGarageAustralia Год назад

That is correct, the JK with its 2A balancer is still sufficient as I can see it doing a great job every single day in my battery shelf. This video is more to show what can be done in terms of external balancer and how to control them.

@Yukonjackman1 4 месяца назад

You change things faster than I change my socks lol when are you going give away some crap on your shelf

@melbournesubtropicfruits9474 Год назад

Hi - is the standard 300A BMS OK? Does it also have a slot for a active balanceer / voltage controller? Id love the Muller but is over my budg6😪

@jimjones7821 Год назад

A 16-22S version with CAN would be a win I think. Why 22S ? - LTO if one wants a 48vnom LTO bank. 17S for LiFePo4 would be nice as well - as one commenter here stated - most inverters can accept the higher battery voltage of the extra cell (ie, 17S instead of 16S) and this allows a little more stored energy in the system and gives an extra cell that could be used to make a 16S system if one cell goes bad and needs to be removed from a 17S system - before you poo-poo this idea think about it - to have 17 cells in series to make a 48vnom battery means ALL cells are the same age and have the same (more or less) wear - if you have a 16S system and need to replace one cell, a replacement cell introduced to the battery will have very different characteristics to the other 15 cells in that 16S battery. It would be nice to have one spare cell in the system (ie, a17S battery) that is actually being used at the same time as the other 16 cells......so when you have to remove one faulty cell the other cells are all the same age etc in the now 16S battery. Makes sense if you think about it - I wonder why this is not more prevalent in DIY Solar ?

@boatelectricaldiy Год назад

Good to see you back with the better BMS Andy. I use the JBD in my professional installations. Despite the new addition of an active balancer, I will not be using this model as top balancing is not necessary after it has been done the first time a battery pack is created(with quality cells). I have yet to see in any of my installations a passive balancer that didn't keep the cells perfectly balanced between 1 to 2 millivolts even though I set the balance threshold to 10 millivolts. It's not worth spending the extra money for my business, but I can see the appeal for the DIY crowd who might not have the same quality of cells.

@onthelake9554 Год назад

Curious what size cells you are using ? 300 ah cells need more balancing power than 100 ah of course .

@boatelectricaldiy Год назад

@@onthelake9554 a very good question. The majority of my installations are with 300AH+ cells for the ship's house system. I only use 100AH on ships 30 to 80 feet long, that I have designed a separate marine electronics(radios, gps, ais, radar, sounder) battery system for. In larger ships, I use 300AH for the separate electronics system too. Active balancing is only needed when a battery pack is first made for 300AH+(quality cells).

@OffGridGarageAustralia Год назад

Yes, if you use high quality cells, the balancing argument goes away quickly. Most people in the DIY scene don't use these cells but 'A-Grade' cells as we know them. They need a bit of balancing here and there...

@boatelectricaldiy Год назад

@@OffGridGarageAustralia Lots of quality cells out there that aren't "automotive grade". Those are for making high voltage battery banks, 400 to 800 VDC. My comments are about low voltage storage grade batteries. I realize that unfortunately many of the people that are not professionals, end up getting stuck with not-so-great-cells because a distributer is going to keep their long term business partners happy and send a 1 time buyer any lesser cells that they have. This looks like a great BMS for dealing with those lesser quality cells that don't like to stay balanced.

@bertherta494 Год назад

@@boatelectricaldiy Good comments, so generally what BMS do you use on A grade cells?

@powersuper90 6 месяцев назад

Grazie per il video tengo un bms della Daly ........... adesso so cosa prendere

@Mike-jn1nk Год назад

Hi, Have been watching your video's for a while now and are learning heaps :-) Sorry to ask a silly question as i am new to all this. In the BMS description it states "● Doesn’t Support Series Connection" is this referring to not being able to have 2 BMS's in series?

@AntonioTFernandez Год назад

so can we series connect these bms? i want 72 volts or sometimes even more but also 48v more often

@kentjonsson4777 Год назад

I bought the Müller edition. Works great, but I don't seem to have the same XiaoXiang app on my iOS phone. I can't change any settings, and the display looks very different (white background and text in black and light blue. The app ikon is blue with a white elephant. Are there different versions of the app?

@larryheij1783 Год назад

Hello Thank you so much for all the interesting videos you make. Have a question for you. if I mount 2 strings, each 12 volt 300 amp and parallel connect these so I get 12 volt 600 amp. can i use 1 jk bms for both strings ? What is the best solution. SINCERELY Larry

@sidperry7748 Год назад

Looks good 👍

@ThanosSustainable Год назад

That’s strange; on my JBD BMSs, balancing works EITHER when charging OR when not charging. There’s no way to set the BMS to balance all the time. What’s going on here? Different firmware versions?

@JimFisherDIYPortableSolarPower Год назад

My experience has also clearly verified that simply connecting an active balancer, and leaving it constantly "on", only makes the cell imbalance worse when you are working with other than brand new, A grade cells. It becomes glaringly apparent as the cells approach the top of the charge curve. The Heltec active balancers are very good at what they do, but they must be manually switched on to be most effective, and only near the top of the charge curve. Then they must be manually turned off. The Muller energy BMS auto on/off parameter for the active balancer is a big improvement and a welcome function for DIY battery management.

@honumoorea873 Год назад

My jkbms balancer is always on (well... At 3.25V) and my cells are perfectly balanced... And.. I've never top balanced this pack.

@erwa8729 Год назад

Genious. The 8S version is mine.

@bobelton9486 Год назад

I would purchase 3 of 16s versions when available and most likely more on an ongoing basis

@claudioporto5926 Год назад

JkBMS, less cabling less space less fuzz, still the best to me 😊

@OffGridGarageAustralia Год назад

It absolutely is, the JBD is just another option hew have now...

@davidklug5339 Год назад

and third price..

@hanswurst2672 Год назад

As your comment seems a bit single-sided to me: Yes I may have also gone for a JK BMS. But I need it for a 12V (4S LiFePO4) system with a 2300W inverter (efficiency ~90%). Now do the calculation. Only the inverter can now draw up to 213A from the battery and I have even more consumers. (it is for a caravan). For sure: 24V is the better choice for large inverters but in my case that would have meant to double the battery cells (8S), double the weight, double the mounting space and including a 24V/12V DC-DC converter or alternatively changing all existing 12V devices (some you might even not get here with 12V - like the tiny water pumps). So it is not „this BMS is better than that“. It simply depends on your application And for 4S at hight currents I haven‘t seen any better so far. (This could also be understood as a challenge for JK to develop a 4S 300A BMS 😁)

@awesomusmaximus3766 Год назад

Awesome I hope it lasts a long time My Daly's have been running flawlessly so far these 250 A units have 300 ma passive balancing

@mullerenergy Год назад

Sorry, but I will have to disagree with the balancing current (unless there's a model that I'm unaware of). The Dalys we have in our batteries definitely only have a balancing current of 30mA. I'm definitely not saying that they're a bad BMS, I actually like them (I know many don't), but I think that they have a few oddities that could be improved upon, the main one being te SOC settings.

@OffGridGarageAustralia Год назад

Daly is not to bad for what they do and still a good BMS when using them in the 300A+ range, balancing totally sucks though in all of them. I mean really sucks!

@Dutch_off_grid_homesteading 8 месяцев назад

Heya, oh yes a 16s JBD BMS would be great I would order 3 of them

@brianbavington4665 5 месяцев назад

thank you so much

@keyem4504 Год назад

It honestly would be a nice simple project to build something around an MCU that switches on an external balancer when the internal balancer turns on. It's on my list already for some time, but there is so much to tinker around with and so little time...

@BrazzaB1 Год назад

Just my thoughts 👍

@rickstarcampbell2771 Год назад

Can not wait for Sol-Ark 15 to arrive 😉

@madisonbusman7688 Год назад

Thanks Andy! Are there any plans for Muller to sell a JBD BMS but in a 8S configuration? Am I thinking correctly this new BMS has better features (not just higher current capacity) over the others?

@jamest.5001 Год назад

Finally a BMS made how they should be made!!

@tomlibero3780 Год назад

Hello! You don't know how to connect 32 LiFePo4 cells to create a 48V power bank to work with a 5.5kW inverter? Would this be a 16S2P setup and do you need two BMSs for that? Thanks!

@Vmaxfodder Год назад

As an JK BMS fanboy ! You can just go sit on it . 🤣😅😂 . Love your show !

@david8igore Год назад

Andy what is the stand by current draw of the BMS i have the JK with the LCD and the BMS draws about 150maH which is about 3-4amp draw per 24 hours or about 25amp’s per week :( understand this is due to the buck converter in the JK design drawing too much power

@jackoneil3933 Год назад

16S Mueller Energy BMS would be a big seller I suspect.

@wfdTamar 9 месяцев назад

New to DIY LiFePO4. Setting this up with 8 x 304Ah cells in a 2P4S configuration (which I hope is OK) and I'll have a Fchao 3000W inverter to (possibly) run up to 2400 watts of stuff (240 volt). One thing I don't like are the small mounting holes right on the corner of the PCB.Something a little more robust like on the JK would be nice.

@extremeacc101 Год назад

Such a great idea.

@OffGridGarageAustralia Год назад

I really like this solution and BMS. Never was a big fan of JBD but this mod is great.

@joevasquez1776 Год назад

I have ran x2 jbd bms (video on my profile) for 2 years on a 12 volt system!!!! On my whole house ac squirrel cage daily for heating and cooling . 2200 square foot home. NM

@sanketghadage3201 7 месяцев назад

Hello dear sir, I have purchased a JK BMS model JK B2A24S15P. I am facing some problems like CAN Communication protocell to read the BMS Data. So kindly help me Pls.

@tomashermansson6898 11 месяцев назад

Andy, I've got a 2P4S (ETC-LFP240AH) setup on my sailing yacht, and I've installed the Daly Smart Balancer with a connection to my Victron system. However, I've been experiencing occasional connection issues with Victron. Do you think it might be worth considering replacing it with this BMS instead?

@brusli3980 Месяц назад

Isnt it better to set balanse with lower voltage to not reach to big voltage difference between cells?

@AveRage_Joe Год назад

Finally the option is available! To bad not a 16s...... yet!!

@OffGridGarageAustralia Год назад

Yea, working on it. A 16S version would be great. Lots of interest here...

@greenbimoon Год назад

Just downloaded the xiaoxiang BMS App, with the small elephant symbol, under the download name lghyes as per Muller Energy instructions on my Android. I have no access to the Parameters. How do we gain access?

@salimnaufal1779 Год назад

I have used a JBD Bms (with a contactor version) and faced problems. When any of the cells exceed the preset voltage level, the BMS would disconnect permanently. I had to disconnect the balance wires and reconnect them to have it work again.

@OffGridGarageAustralia Год назад

I had similar issues with the QUCC BMS and contactor. I think they are the same BMS actually. Not a big fan of these relay BMSes to be honest. It was always a bit hit and mis if it turned off the battery and on again.

@jonk313 Год назад

If they do not make a JDB 14S similar to the Muller 12V 250A BMS do you recommend the JK for lion 14S?

@paoloaltamura5447 Год назад

Great video, however, pay attention that when the charge mosfets close, the pulsed charge current of the inverter capacitors without a series resistance that limits the current is extremely large and could damage the BMS mosfets in the long run

@OffGridGarageAustralia Год назад

The BMS is designed to handle that, and I believe it closes the FETs 'slower' than you would by just connecting the cables.

@gyngecykel Год назад

Hello Andy, could you make a tutorial shows where the temperature centres are actually going? Should I be in between the batteries or somewhere else? Regards Flemming

@MiH1IT Год назад

There is quite big price difference... $120 for 4S JK BMS, $350 for JBD, that's a lot

@silviuflorescu6838 Год назад

You know tha the Muller Jbd is in Aud, right? 😄

@MiH1IT Год назад

@@silviuflorescu6838 oh, forgot about that, thanks for pointing it out. So, it's only ~ 235 USD, that's better. Anyway, I'm curious about price of 16S version, that does not exist yet :)

@silviuflorescu6838 Год назад

@@MiH1IT , considering that a 6-22S of 250A is about usd $ 110 in the Jbd store , the final Muller version should be almost the same price as their 4S Au version.

@electricbike2062 Год назад

Hello, do you have a video tutorial on how to connect a 3-part relay to a Jkbms 25S 1000A

@r.b.l.5841 Год назад

Andy great vid as always and gotta say it, you do an outstanding job. {one tiny teny thing, Say: PAR - AM- ETER not para-meter} LOL

@OffGridGarageAustralia Год назад

Aaaaahh, all to complicated. You never know if it is BE or AE or Aussie English 😉

@wayne8113 Год назад

Thanks Andy

@OffGridGarageAustralia Год назад

Thanks, Wayne!

@alikayacan6768 Год назад

Hi. You can add active balancers (1 or more) to all brands of BMS s. I stick to JK 👍

@OffGridGarageAustralia Год назад

Not like this. We have seen what happens when you leave them connected...

@SunsetSlimess Год назад

Any idea how to wire up the 20S in a 16S configuration? Instructions are pretty weak.

@robjohnston8632 Год назад

Andy. Love your channel/reviews. With all the added functions to the BMSs (JK, Muller, Dally) like active balancing, bluetooth, and other functions, why do you think they have not added features like wifi and a shunt? It would be great to see an all in one unit for battery management to enhance the all in one inverters. I recently purchased a sun gold all in one inverter which only track battery usage in my remote cabin through wifi on the load side and does not track ideal usage, and my JK BMS is wifi only capable which does not have the accuracy of a shunt or wifi capability. This leaves me and a lot of other DIy’rs to only see half our system or we have to purchase a Victron GX system or something similar.

@fhorst02 Год назад

:-). We are pioneers, that's why 😂 The batteries didn't have laser welded studs, now they do. Bms where dumb, now smart(er) and start communicating.. strangely most Chinese think we(rest of the world) doesn't like wifi. As soon as anyone invent BT to wifi (with the software that makes your BT app think it does connect to the BT device)... They will include this! Just wait an other year and you are able to buy at our beloved china tech prices. Or don't wait and buy $$$ victron..

@ianb4801 Год назад

That’s real step forward as far as balancing goes - plus anything that stops huge sparks is brilliant. But that’s a whole lotta hardware for someone who lives on a boat where nothing like 250A is going to be used. Will this new stuff me available in a physically smaller version for maybe 120A peak? Not an issue for house installations with panels everywhere, but the new functionality has wider applications than this for better looking after batteries

@OffGridGarageAustralia Год назад

This BMS is the first of its kind, so I'm sure there will be different versions in the future. It was specifically made for Muller to suit their 12V batteries, hence the 250A version.

@MyGoogleYoutube Год назад

Controlling my active balancers with my Victron BMV in the same manner this does. Not as slick. I think it should have a time delay option in case the battery is flipping between the preset volts causing the balancer to flick on and off.

@XonGrid Год назад

I think I would air condition the Off-Grid Garage with an energy efficient 12Kw Mini Split A/C... then I would leave the bay doors open to get rid of all yourextra power....since you have Too Much Power and I'm Canadian and don't like Too Much Heat!!!

@stevenlouis1024 9 месяцев назад

I have the muller energy 250a and the app is different than your newer video. There is a setting called “Balance Settings” what voltage should I set the Equalization Voltage. Default is set at 3300 mv. Any recommendations Apparently the software app has changed.

@OffGridGarageAustralia 9 месяцев назад

App is different between Android and iOS. Balance should start at the same voltage as your desired full charge voltage you have set in your charger divided by the cell count in series. Example: 13.8V battery full charge voltage for a 12V battery, divided by 4 cells in series, set the balance voltage to 3.45V

@aftabmaqsood Год назад

andy need studio lights setup to tackle reflection

@vb9528 Год назад

great video! can you recommend a BMS that can communicate with voltronic inverters? (eg easun SV4 / infinisolar s4). They seem to communicate fine with Ampleness batteries - but i dont know what kind of BMS is inside of them.

@OffGridGarageAustralia Год назад

The Seplos BMS can definitely communicate with Voltronic Inverters. It's on their list of supported inverters. off-grid-garage.com/battery-management-systems-bms/

@rex13291 Год назад

Hi Andy, big fan of your channel from the Philippines, can you sell me your used JK BMS? Im starting a little DIY offgrid setup and you are my inspiration, you are fun to watch, educational and I can easily relate to your video. you always makes my day.